/Engine/Source/Runtime/Core/Public/Misc/CoreDelegates.h
Delegate for gathering up additional localization paths that are unknown to the engine core (such as plugins)
static [TMulticastDelegate](API\Runtime\Core\Delegates\TMulticastDelegate)< void([TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > &)> GatherAdditionalLocResPathsCallback;